Enum ResourceConstraint 

pub enum ResourceConstraint {
    Any,
    Eq(EntityOrSlot),
    In(EntityOrSlot),
    Is(EntityType),
    IsIn(EntityType, EntityOrSlot),
}

Resource scope constraint (same shape as PrincipalConstraint).

resource,                               // Any
resource == Photo::"pic.jpg",           // Eq(Entity)
resource == ?resource,                  // Eq(Slot)
resource in Album::"vacation",          // In(Entity)
resource is Photo,                      // Is
resource is Photo in Album::"vacation", // IsIn

Variants

Any

resource — matches any resource

Eq(EntityOrSlot)

resource == <entity_or_slot>

In(EntityOrSlot)

resource in <entity_or_slot>

Is(EntityType)

resource is <type>

IsIn(EntityType, EntityOrSlot)

resource is <type> in <entity_or_slot>

Implementations

impl ResourceConstraint

pub fn link( self, vals: &HashMap<SlotId, EntityUID>, ) -> Result<ResourceConstraint, LinkingError>

Fill in any slots in this constraint using the values in vals.

pub fn has_slot(&self) -> bool

Test whether the constraint contains any slots.

pub fn slot(&self) -> Option<SlotId>

Get the slot, if any

Trait Implementations

impl Clone for ResourceConstraint

fn clone(&self) -> ResourceConstraint

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ResourceConstraint

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for ResourceConstraint

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for ResourceConstraint

fn eq(&self, other: &ResourceConstraint) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ResourceConstraint

impl StructuralPartialEq for ResourceConstraint